Comment Re:O(n^2) (Score 1) 396
The problem with O(n^2) estimations is that academics count high-level operations as an atomic unit rather than basing efficiency evaluations on the CPU cycle count of each CPU instruction (this is considered "vulgar" by an academic world in love for abstraction, as each instruction's CPU cycles are different for each CPU).
Worse, they act in their optimization strategies just like if computers were 'perfect' machines -waving real-world issues such as CPU caches, DMA overhead, or the memory wall.
As a result, while not totally pointless, academic research is too often far away from reflecting real-world conditions.
No wonder why companies like MICROSOFT (who hire and fire young graduates mainly for the associated tax-breaks) design and implement products that miss so extraordinary well their target.
The difference between theory and practice is larger in practice than it is theory...
"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater."
"Intellectuals solve problems, geniuses prevent them."
"Information is not knowledge. The only source of knowledge is experience."
"Truth is what stands the test of experience."
"Imagination is more important than knowledge."
(Albert Einstein)
Worse, they act in their optimization strategies just like if computers were 'perfect' machines -waving real-world issues such as CPU caches, DMA overhead, or the memory wall.
As a result, while not totally pointless, academic research is too often far away from reflecting real-world conditions.
No wonder why companies like MICROSOFT (who hire and fire young graduates mainly for the associated tax-breaks) design and implement products that miss so extraordinary well their target.
The difference between theory and practice is larger in practice than it is theory...
"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater."
"Intellectuals solve problems, geniuses prevent them."
"Information is not knowledge. The only source of knowledge is experience."
"Truth is what stands the test of experience."
"Imagination is more important than knowledge."
(Albert Einstein)